1860–1869
Pierre Louis Pierson, 1860
Pierre Louis Pierson, 1895
Pierre Louis Pierson, 1859
Pierre Louis Pierson, 1861
![[Countess de Castiglione, from Série des Roses]](https://images.metmuseum.org/CRDImages/ph/original/DP205224.jpg)
![[Napoleon III and the Prince Imperial]](https://media.getty.edu/iiif/image/e21e5abb-4c3f-4f40-95f7-0c76fe062e7f/full/843,/0/default.jpg)
![[La Comtesse Reclining in Dark Dress with Chain Around Neck]](https://images.metmuseum.org/CRDImages/ph/original/DP235103.jpg)
![[Countess de Castiglione]](https://images.metmuseum.org/CRDImages/ph/original/DP205248.jpg)